202 BYZANTINE CHURCHES CHAP. ferred the patriarchal seat to the monastery and church of the Pammakaristosj certain nuns previously accommodated in that House were removed to the neighbouring monastery of S. John Baptist; in Trullo. Phrantzes explains the designation of the church^ c in Trullo/ as derived from a palace named Trullus which once stood in the vicinity to the north of the Pammakaristos. It was the palacej adds the historian/ in which the Council of Constantinople, known as the Concilium Quinisextum (JlevOetcrrf)) or the second Concilium Trullanum^ assembled in 6923 in the reign of Justinian II. But the palace Trullus3 in which the first Concilium Trullanum met in 680, was one of the group of buildings forming the Great Palace2 beside the Hippodrome, and there the second Concilium Trullanum also held its meetings-8 Phrantzes is therefore mistaken in associating the Council of 692 with a palace in the vicinity of the Pammakaristos and Achmed Pasha Mesjedi. But his mistake on that particular point does not preclude the existence of a palace^ named Trullus in the neighbourhood of the Pammakaristos. In feet, the existence of such a palace in that district is the only possible explanation of the attachment of the style £ in Trullo' to a church on the site of Achmed Pasha Mesjedi. Nor is it strange to find a name pertaining primarily to a building in the Great Palace transferred to a similar building situated elsewhere. The imperial residence at the Hebdomon, for example, was named Magnaura after one of the halls in the Great Palace.4 There was an Oaton or Trullus in the palace of Blachernae,5 and in the palace at Nicaea.® Consequently, a palace known as the Oaton or the Trullus might also be situated near the Pammakaristos, to command the fine view from * It was also styled 'Qfoov, t the Oval/ after the form of its roof or of the body of the building itself (Synax., Sept. 14.). Vita Stephani, For the 'Qaro?>, see Labarte, Le Palais imp/rial de Cons'pie-, pp. 62, 121, 122, 186. 2 Vita Stephant Junioris, Migne, P.O. torn, too, col. 1144& r$lepf iraXarty, &0a fotXtyerat 6 TpouXXos $7rep "jjfttfs 'Cldrov ica,\ovfjw* 3 Balsamon, vol. i. col. 501 & rf T/»otfXX# rou jSaortXi/cou raXarfou. 4 Theoph. p. 541. 6 Pachym. i. p. 405. 6 Acta et diplomata Graeca, ill. p. 65 ; cf. Paspates, Great Palace, p. 248, Metcalfe*s translation.